484 Scientific Intelligence. 



II. Geology and Mineralogy. 



1. Publications of the United States Geological Survey ; 

 George Otis Smith, Director. — Recent publications of the U. S. 

 Geological Survey are noted in the following list (continued 

 from vol. xxxiii, p. 507, May, 1912) : 



Topographic Atlas : Fifty-iive sheets. 



Folio No. 1S2. — Geologic Atlas of the United States Chop- 

 tank Folio, Maryland ; by B. L. Miller. Surveyed in coopera- 

 tion with the State of Maryland. Pp. 8 ; 2 colored maps, 3 

 figures. 



Professional Paper No. 77. — Geology and Ore Deposits of 

 the Park City District, Utah ; by John M. Boutwell, with 

 contributions by Lester H. Woolsey. Pp. 231 ; 44 plates, 18 

 figures. 



Mineral Resources of the United States in 1911. Numer- 

 ous advance chapters. 



Bulletins No. 471. — Contributions to Economic Geology, 

 1910, Part II. Ten advance chapters. 



No. 498. Headwater Regions of Gulkana and Susitna Rivers, 

 Alaska, with accounts of the Valdez Creek and Chistochina 

 Placer Districts ; by Fred H. Moffit. Pp. 82 ; 10 plates, 9 

 figures. 



No. 506. Geology and Mineral Resources of the Peoria Quad- 

 rangle, Illinois ; by J. A. Udden. Pp. 103 ; 9 plates, 16 figures. 



No. 507. The Mining Districts of the Western United States; 

 by James M. Hill, with a geologic Introduction by Waldemar 

 Lindgren. Pp. 309 ; 16 plates, one figure. 



No. 509. Mineralogical Notes. Series 2 ; by Waldemar T. 

 Schaller. Pp. 115 ; one plate, 5 figures. 



Nos. 514, 516, 517, 519. Results of Spirit Leveling : R. B. 

 Marshall, Chief Geographer. No. 514, New York, pp. 139. 

 No. 516, Florida, pp. 24, one plate. No. 517, Alabama, pp. 38. 

 No. 519, Tennessee, pp. 45. 



No. 520. Mineral Resources of Alaska. Twelve advance 

 chapters. 



No. 530. Contributions to Economic Geology, 1911, Part I, 

 eleven advance chapters. 



Water Supply Papers No. 279. — Water Resources of the 

 Penobscot River Basin, Maine ; by H. K. Barrows and C. C. 

 Babb. Prepared in cooperation with the Maine State Survey 

 Commission. Pp. 285 ; 19 plates, 5 figures. 



Nos. 285, 291. Surface Water Supply of the United States, 

 1910. Prepared under the direction of M. O. Leighton. No. 

 285. Part. V, Hudson Bay and Upper Mississippi River ; by 

 Robert Follansbee, A. H. Horton, and G. C. Stevens. Pp. 

 318 ; 4 plates. No. 291. Part XI, Pacific Coast of California ; 

 by W. B. Clapp, F. F. Henshaw and H. D. McGlashan. Pp. 

 218 ; 4 plates, one figure. 



